黑龙江省水利工程的施工期很多要延续到１０月末到１１月初，有的甚至要在冬季施工。这就涉及到砼的冬季施工问题。 为了防止砼受冰冻破坏降低强度和防渗性能，通常都采取冬季施工措施。冬季作业的砼通常米用蓄热法、暖棚法、电热法和蒸汽法等进行养护。随着新型保温材料的诞生 Heilongjiang Province, a lot of water conservancy construction period to be extended to late October to early November, and some even in winter construction. This involves the construction of concrete in winter. In order to prevent the destruction of concrete by freezing to reduce the strength and impermeability, usually take winter construction measures. Concrete work in winter usually meters with thermal storage method, warm shed law, electric law and steam law and other conservation. With the birth of new insulation materials